Large current negative hydrogen ion beam production

A. Ando, K. Tsumori, Y. Oka, O. Kaneko, Y. Takeiri, E. Asano, T. Kawamoto, R. Akiyama, T. Kuroda

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28 Citations (Scopus)

Abstract

Large current negative hydrogen ions are extracted from a multicusp ion source with an extraction area of 25X44 cm2. By seeding a small amount of cesium vapor into a source chamber, the H- current is enhanced to several times larger than that in a pure hydrogen discharge, accompanied by a reduction of the electron current and the filling gas pressure. A H- current up to 16 A is obtained with a beam energy of 40 keV from 560 extraction holes of 9 mm in diameter each, where the current density is 45 mA/cm2. The H- current increases linearly with the input arc power.

Original languageEnglish
Pages (from-to)2813-2815
Number of pages3
JournalPhysics of Plasmas
Volume1
Issue number9
DOIs
Publication statusPublished - 1994 Jan 1
Externally publishedYes

ASJC Scopus subject areas

  • Condensed Matter Physics

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  • Cite this

    Ando, A., Tsumori, K., Oka, Y., Kaneko, O., Takeiri, Y., Asano, E., Kawamoto, T., Akiyama, R., & Kuroda, T. (1994). Large current negative hydrogen ion beam production. Physics of Plasmas, 1(9), 2813-2815. https://doi.org/10.1063/1.870519